generated: '2026-09-19'
method: searched
source: Live probe of the /.well-known/ discovery surface for every base host in apis.yml (baseURL https://api.zapier.com)
  and the OpenAPI servers[] plus the Zapier docs/MCP/actions hosts. Status is the HTTP code observed at
  fetch time. Only documents that returned a real, correctly-typed JSON payload were saved verbatim. api.zapier.com
  answers 401 (auth wall) for every /.well-known/ path; actions.zapier.com 301-redirects them.
hosts:
- host: https://zapier.com
  documents:
  - path: /.well-known/api-catalog
    status: 200
    file: zapier-api-catalog.json
  - path: /.well-known/mcp/server-card.json
    status: 200
    file: zapier-mcp-server-card.json
  - path: /.well-known/ai-plugin.json
    status: 301
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/oauth-protected-resource
    status: 404
- host: https://mcp.zapier.com
  documents:
  - path: /.well-known/oauth-authorization-server
    status: 200
    file: zapier-mcp-oauth-authorization-server.json
  - path: /.well-known/oauth-protected-resource
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/oauth-protected-resource
    status: 200
    file: zapier-mcp-oauth-protected-resource.json
    bytes: 151
  path_echo_control: passed
- host: https://api.zapier.com
  documents:
  - path: /.well-known/oauth-authorization-server
    status: 401
  - path: /.well-known/oauth-protected-resource
    status: 401
  - path: /.well-known/security.txt
    status: 401
  - path: /.well-known/openid-configuration
    status: 401
  - path: /.well-known/api-catalog
    status: 401
- host: https://actions.zapier.com
  documents:
  - path: /.well-known/ai-plugin.json
    status: 301
  - path: /.well-known/security.txt
    status: 301
x-mcp-probe:
  probed: '2026-09-19'
  issue: roadmap#321, roadmap#337
  documents:
  - host: https://mcp.zapier.com
    path: /.well-known/oauth-protected-resource
    file: zapier-mcp-oauth-protected-resource.json
  validated_on: resource (RFC 9728) / issuer (RFC 8414, OIDC)
  negative_control: one per host; a 2xx JSON object at an impossible path discards the host
note: 'MCP-host OAuth discovery added 2026-09-19 (roadmap#321/#337): the harvest visits a provider''s
  primary hosts, and RFC 9728 protected-resource metadata lives on the MCP host, so these documents existed
  and were invisible to the scorer. Fetched live and validated on `resource`/`issuer`; one negative control
  per host.'